Question

Determine whether the shapes given below are always, sometimes, or never similar. Briefly explain your answers. (Hint: The scale factor might be useful for some of these.)
1 A large circle and a smaller circle.
2 A large ellipse (oval) and a smaller ellipse.
3 Two rectangles.
4 Two *golden* rectangles.
5 Two pentagons.
6 Two *regular* pentagons.
7 A regular pentagon and a regular hexagon.
8 Two isosceles triangles.

Answer 1